Home / 28,305,947.92-42,400,135.08-18,019,940.20

Finding the Fourth Proportional to 28,305,947.92, 42,400,135.08 and 18,019,940.20

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Solution

The fourth proportional to 28,305,947.92, 42,400,135.08 and 18,019,940.20 is: 26,992,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305,947.92 : 42,400,135.08 = 18,019,940.20 : x
  2. Step 2: Convert to fraction form
    28,305,947.92/42,400,135.08 = 18,019,940.20/x
  3. Step 3: Cross multiply
    28,305,947.92x = 42,400,135.08 × 18,019,940.20
  4. Step 4: Simplify right side
    28,305,947.92x = 764,047,898,613,522.12
  5. Step 5: Solve for x
    x = 764,047,898,613,522.12/28,305,947.92
  6. Step 6: Final answer
    x = 26,992,485.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.